Sapphire – a precious gemstone of exceptional beauty and value, a variety of the mineral corundum. Primarily known for its captivating blue color, ranging from sky blue to deep royal blue, sapphire also exists in a stunning palette of "fancy" hues: pink, yellow, orange, green, purple, and even colorless.
With exceptional hardness (9 on the Mohs scale), it is second only to diamond, making it an ideal choice for everyday jewelry, including rings and bracelets. Its scratch resistance ensures durability and preservation of its pristine appearance.
A sapphire's value is determined by the saturation and purity of its color, transparency (absence of inclusions), and the quality of its cut, which expertly reveals its brilliance and play of light. The most desirable stones are those with a rich blue color and high transparency. It's worth noting that many sapphires undergo heat treatment to enhance color and clarity – a common and accepted practice in the jewelry industry that makes the beauty of sapphires more accessible. Historically, sapphire is associated with wisdom, nobility, and loyalty. It is often chosen for engagement and wedding rings as a symbol of strong and sincere relationships.
Sapphire – is not just a beautiful stone, but also a lasting investment and a potential family heirloom, passed down through generations.
Physical properties
Chemical formula
Al₂O₃ (Aluminum Oxide)
Hardness
9 on the Mohs scale
Crystal system
Trigonal
Transparency
Transparent to Opaque
Luster
Vitreous to Sub-adamantine
Color
Blue (primary), pink, yellow, orange, green, purple, colorless, black, brown (all corundum colors except red - ruby)
Specific gravity
3.95 - 4.03
Jewelry with this mineral
If you notice errors or inaccuracies in mineral descriptions, please contact us.